𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Observation of Davydov splitting in the MCD spectra of α metal-free phthalocyanine

✍ Scribed by B.R. Hollebone; M.J. Stillman


Publisher
Elsevier Science
Year
1974
Tongue
English
Weight
357 KB
Volume
29
Category
Article
ISSN
0009-2614

No coin nor oath required. For personal study only.

✦ Synopsis


The.magnetic circular dichroism and absorption spectra of (Y metal-free pfithalocyanine have been measured at 300 and 8 K. Using both techniques the visible spectrum can be ar;dysed'as,two transitions to degenerate and two to nondegenerhte excited states. These excited states are assigned as the differently split pairs of Davydov components derived from the lowest energy E, and AZ" states of the mor.omeric 18n electron phtholocyanine ring.


📜 SIMILAR VOLUMES


Time resolved observation of geminate re
✍ Zoran D. Popovic 📂 Article 📅 1983 🏛 Elsevier Science 🌐 English ⚖ 256 KB

Delayedcollection-field measurements of carrier \_eeneration and delayed fluorescence in metal-free phthalocyanine have been shown to exhibit the same time dependence. This indicates the esistence of geminate electron-hole pairs with survival times estending to tens of milliseconds.

Dynamic metal-ligand coupling in the inf
✍ Rodney Gale; Robin E. Godfrey; Stephen F. Mason 📂 Article 📅 1976 🏛 Elsevier Science 🌐 English ⚖ 418 KB

The it.xM singk-crystaf magnetic circul-JS dichroisn spectra of Cs$M3&Yo2\* and Cs~ZnBr&oZ+ have been measured over the 400~-700~ cm-' region of t&e 4Aa -' Tt <I?) transition at ambient and liquid-helium temperature. The f?/D and C/D terms obtained give transition moment ratios, (t~llmIlt~)/~eilmIIt

Effect of Peripheral Substitution on the
✍ Nagao Kobayashi; Hiroshi Ogata; Naokazu Nonaka; Eugene A. Luk'yanets 📂 Article 📅 2003 🏛 John Wiley and Sons 🌐 English ⚖ 311 KB 👁 1 views

## Abstract The effect of substituents on the position and intensity of the electronic absorption and fluorescence spectra of phthalocyanines (Pcs) was examined for 35 Pc compounds. When electron‐releasing groups are bound to four __α__‐benzo positions of the Pc skeleton, the B and Q bands shift to